Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Quality Characteristics of Jelly Prepared with Flowering Cherry(Prunus serrulata L. var. spontanea Max. wils.) Fruit Powder

버찌(Fruit of Prunus serrulata L. var. spontanea Max. wils.) 분말 첨가 젤리의 품질특성

  • Kim, Kyoung-Hee (Dept. of Food and Nutrition, Chungnam National University) ;
  • Lee, Kyung-Hwa (Dept. of Food and Nutrition, Chungnam National University) ;
  • Kim, Sung-Hwan (Dept. of Food Science Nutrition, Joongbu University) ;
  • Kim, Na-Young (Dept. of Food Science Nutrition, Joongbu University) ;
  • Yook, Hong-Sun (Dept. of Food and Nutrition, Chungnam National University)
  • 김경희 (충남대학교 식품영양학과) ;
  • 이경화 (충남대학교 식품영양학과) ;
  • 김성환 (중부대학교 식품영양학과) ;
  • 김나영 (중부대학교 식품영양학과) ;
  • 육홍선 (충남대학교 식품영양학과)
  • Published : 2010.01.30
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Abstract

The purpose of this study was to investigate the effect of adding various concentrations of cherry powder(obtained from freezed dried fruit of Prunus serrulata L. var. spontanea Max. wils.) on the physicochemical, antioxidant, and sensory characteristics of jelly. The pH of the jelly decreased significantly with the addition of cherry powder. The sugar content of the jelly increased significantly (p<0.05) with cherry powder added more than 7%. The Hunter color L-values decreased significantly (p<0.05) by the addition of cherry powder, and a- and b-values increased by the addition of cherry powder compared to the control, but there were no constant changes with increasing amounts of cherry powder. For the textural characteristics, the addition of cherry powder significantly (p<0.05) increased the hardness, chewiness and gumminess but there were no significant difference (p<0.05) in the springness and cohesiveness. The antioxidative activity measured by DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging activity of jelly increased as the concentrations of cherry powder increased. The jellies containing 1 and 5% cherry powder had acceptable sensory properties, such as color, flavor, taste, texture, and overall quality. In consideration of the antioxidant properties and sensory characteristics, the highest quality improvement was obtained by adding 5% (w/w) of cherry powder into the jellies.

버찌분말을 첨가한 젤리(0, 1, 3, 5, 7, 10%)를 제조하여 항산화 활성 및 기계적, 관능적 품질 특성을 조사하였다. 젤리의 pH는 버찌분말 첨가에 의해 유의적으로 감소하였으며, 당도는 버찌분말을 7% 이상 첨가할 경우 증가하는 유의차를 나타내었다. 젤리의 색도는 버찌분말 첨가량이 증가할수록 명도가 유의적으로 감소하였으며 적색도 및 황색도는 버찌분말 첨가에 의해 증가하였으나, 버찌분말 첨가량의 증가에 따른 경향을 나타내지는 않았다. 젤리의 조직감은 버찌분말 첨가량이 증가할수록 경도, 씹힘성, 검성이 유의적으로 증가하였으며 탄력성 및 응집성은 유의차를 보이지 않았다. 젤리의 항산화 활성은 버찌분말 첨가량이 증가할수록 유의적으로 증가되었다. 관능검사 결과, 색, 냄새, 맛, 조직감, 전반적인 기호도에서 버찌분말 5% 및 1% 첨가군에서 높은 선호도를 나타내었다. 따라서 젤리에 대한 버찌분말의 첨가는 젤리의 항산화 특성 및 관능적 특성을 고려할 때 5% 첨가가 상품개발 가능성이 높은 것으로 판단되었다.

Keywords

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